Is CVE-2019-20920 in the CISA KEV catalog?

No. CVE-2019-20920 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2019-20920?

CVE-2019-20920 has a CVSS v3 base score of 8.1 (HIGH).

What is the EPSS score for CVE-2019-20920?

CVE-2019-20920 has an EPSS score of 3.19% (87th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2019-20920?

Upgrade node-handlebars on debian 11 to 3:4.5.3-1 or later.

CVE & CISA-KEV Catalog

CVE-2019-20920

HIGHEPSS 87th pctl

8.1

CVSS v3

NVD

Description

Handlebars before 3.0.8 and 4.x before 4.5.3 is vulnerable to Arbitrary Code Execution. The lookup helper fails to properly validate templates, allowing attackers to submit templates that execute arbitrary JavaScript. This can be used to run arbitrary code on a server processing Handlebars templates or in a victim's browser (effectively serving as XSS).

CWE-94Code Injection

How to fix

Remediation Available

node-handlebarsDebian

Fixed in:3:4.5.3-1CVE-2019-20920

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityLow

AvailabilityLow

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:L

Exploit Intelligence

3.19%probability of exploitation in 30 days

87thpercentile

Elevated risk: more likely to be exploited than 87% of all known CVEs.

References

Exploit1

npmjs.com

Third-Party Advisory2

Related Vulnerabilities

Other CWE-94 (Code Injection) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2017-9841	Critical	9.8	100%	KEV	Fix
CVE-2015-1635	Critical	9.8	100%	KEV	-
CVE-2022-22954	Critical	9.8	100%	KEV + Ransom	-
CVE-2021-22204	Medium	6.8	100%	KEV	Fix
CVE-2025-3248	Critical	9.8	100%	KEV	Fix
CVE-2012-0158	High	8.8	100%	KEV	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.